I really like Ubuntu, but I always had to switch back to Windows just because I couldn't get my Intel HD Graphics 3000 to work. So, 11.10 came out and I'm trying to get things work in this update, so I can finally stay with Ubuntu and use it. Anyways, things seem to be more stable here, but they're still a bit fishy.

I'm doing tests with Minecraft. Currently, there's only 1 minor bug. The game flickers from time to time and the colors get buggy or something

I read that maybe I should update to kernel 3.1? Maybe 32-bit Ubuntu is better?

It was impossible to play Minecraft in 11.04, but 11.10 is so much more stable.

4 Answers
4

you may not need to update your kernel but by all means it may help i suspect it is because you may be using openJDK, minecraft has problems running under openJDK which is installed on oneiric(11.10) by default you can install oracle's JRE/JDK here you may need to uninstall openJDK before-hand

you may also want to try using the script found on minecraft's download page if you cannot boot it after installing oracle's java

Check out which java you currently using by typing on terminal java -version if it says that you are using OpenJDK I would recommend install Oracle java by following steps on:
How can I install Sun/Oracle Java 7 JRE.

If it won't help you can try upgrade your video drivers by using x-swat PPA. However it risky that whole system could mess up.